EP 0160985 B2 20011212 - Method and device for calculating relationship between pre-edged lens and spectacle lens
Title (en)
Method and device for calculating relationship between pre-edged lens and spectacle lens
Title (de)
Verfahren und Vorrichtung zum Berechnen der Beziehung zwischen der Rohlinse und der Brillenlinse
Title (fr)
Méthode et appareil pour calculer la relation entre la lentille brute et la lentille des lunettes
Publication
Application
Priority
JP 9139784 A 19840508
Abstract (en)
[origin: EP0160985A2] A method for calculating relationship between pre-edged lens and spectacle frame for use in lens edging machine comprising: frame measurement step to digitally measure radius vector value ( rho n, theta n) of the spectacle frame, lens measurement step to digitally measure a configuration of the pre-edged lens held by lens rotation shafts before edging the lens, and comparison step to compare the radius vector value ( rho n, theta n) with the measurement value of the configuration of the pre-edged lens so as to judge whether or not the pre-edged lens can be edged for fitting to the frame, and device for the method.
IPC 1-7
IPC 8 full level
B24B 9/14 (2006.01); B24B 47/22 (2006.01); G02C 13/00 (2006.01)
CPC (source: EP)
B24B 47/225 (2013.01); G02C 13/003 (2013.01)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0160985 A2 19851113; EP 0160985 A3 19880302; EP 0160985 B1 19930811; EP 0160985 B2 20011212; DE 3587514 D1 19930916; DE 3587514 T2 19931223; DE 3587514 T3 20020502; JP H0558861 B2 19930827; JP S60238264 A 19851127
DOCDB simple family (application)
EP 85105655 A 19850508; DE 3587514 T 19850508; JP 9139784 A 19840508